1. Department of Chemistry & Biochemistry, Kent State University, Kent, OH 44242, USA
2. Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
3. State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China
4. Institute for Integrated Cell–Material Science (iCeMS), Kyoto University, Sakyo, Kyoto 606-8501, Japan